CITEL was founded in 1937 and is active in the development, manufacture and sale of surge protection solutions for all electrotechnical, communication and data technology applications and systems. From the research and development of components, such as gas arresters and gas-filled spark gaps, to the manufacture of complete surge protection solutions, CITEL is continuously working to meet the needs of its customers, now and in the future. CITEL has production sites in France and China, and sales offices in France, Germany, the USA, China, India and Eastern Europe.